EP 1820718 B1 20101124 - CORELESS RUBBER CRAWLER
Title (en)
CORELESS RUBBER CRAWLER
Title (de)
KERNLOSE GUMMIRAUPENKETTE
Title (fr)
CHENILLE EN CAOUTCHOUC SANS NOYAU
Publication
Application
Priority
- JP 2005022153 W 20051202
- JP 2004350043 A 20041202
Abstract (en)
[origin: EP1820718A1] To improve the lifespan of a rubber crawler by reducing as much as possible cracks due to bending at the time of wraparound. Bending deformation no longer becomes concentrated at a specific place because bending rigidities at the time of wraparound are not so different from each other overall. For that reason, the occurrence of cracks can be reduced. As a result, the lifespan of the rubber crawler is improved. A coreless rubber crawler having steel cords embedded in an endless rubber elastic body and in which rubber projections 3 used for driving are formed on an inner peripheral side thereof and rubber lugs 4 are formed on an outer peripheral side thereof, wherein the rubber lugs 4 are divided into right and left rubber lugs from the width-direction center of the rubber crawler, each of the right and left rubber lugs is configured by an inside end area 4a, an outside end area 4b, and a center area 4c that joins these end areas to each other, the inside end areas 4a and the outside end areas 4b extend in the width direction of the crawler, the center areas 4c are diagonally disposed, the inside end areas 4a of the rubber lugs correspond to interspaces between the rubber projections, and the outside end areas 4b of the rubber lugs are disposed in interspaces between the rubber projections.
IPC 8 full level
B62D 55/253 (2006.01)
CPC (source: EP US)
B62D 55/244 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1820718 A1 20070822; EP 1820718 A4 20090114; EP 1820718 B1 20101124; CN 100560422 C 20091118; CN 101068707 A 20071107; DE 602005025012 D1 20110105; JP 4927561 B2 20120509; JP WO2006059704 A1 20080605; US 2008007118 A1 20080110; US 7695077 B2 20100413; WO 2006059704 A1 20060608
DOCDB simple family (application)
EP 05811580 A 20051202; CN 200580041338 A 20051202; DE 602005025012 T 20051202; JP 2005022153 W 20051202; JP 2006546631 A 20051202; US 79136305 A 20051202